Question: How many items per 1000 shipped does UPS lose?

How many items per 1000 shipped does UPS lose outright, and how many items per 1000 shipped does UPS ship late? I would like the figures for shipments within the continental United States and for both air and ground service separately and combined.

I was not able to locate the precise statistics you asked for, however I did find other figures that might interest you.

A U.S. Domestic 10:30 am Delivery Performance Study carried out by PA Consulting Group in September 2006 shows that UPS has a 91% on-time delivery for domestic next-day 10:30 am service in the results for National performance.

"UPS and DHL were more likely than FedEx to meet their promise to the customer to deliver before 10:30 am. Both UPS and DHL delivered almost 91% of packages on time(the difference is not statistically significant)."